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It just uses AA. You can put rechargeable batteries in it but you will have to take them out to recharge them. No way to charge batteries while they are in the remote.
Sorry, there was a problem. Please try again later.Hi, the Harmony 665 Remote uses 2 AA batteries.
Sorry, there was a problem. Please try again later.I don't know and your direction book in package does not tell someone to much..
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